*The formula for calculating bandwidth
In the situation of network latency and packet Loss transfer speed may be slow in spite of wide bandwidth.
You can know the formula how you estimate valid bandwidth in these cases.

*Calculate latency between different 2 locations in the world
Calculate latency between different 2 locations on world map.
Not English is OK.
For estimating Network Latency between different cities or countries in the world. ******************************************
You can enter the value as following